CocosTokenV2

0xc4c7ea4fab34bd9fb9a5e1b1a98df76e26e6407c Copy

ERC20

This contract is an ERC20 token.

Name CocosTokenV2

Symbol COCOS

Decimals 18

Total Supply 100,000,000 COCOS

About

Cocos-BCX (COCOS) is a cryptocurrency and operates on the Ethereum platform. Cocos-BCX has a current supply of 100,000,000 with 42,015,868 in circulation. The last known price of Cocos-BCX is 0.57252135 USD and is down -14.89 over the last 24 hours. It is currently trading on 8 active market(s) with $9,410,352.59 traded over the last 24 hours. More information can be found at https://www.cocosbcx.io/.

Stats

Public Functions 27

Event Types 12

Code Size 31,962 bytes

Library Use

Uses SafeMath for uint.

Events (12)

AddBlackAccount Event

Parameters

operator	address
blackAccount	address

AddWhiteAccount Event

Parameters

operator	address
whiteAccount	address

Approval Event

Parameters

owner	address
spender	address
value	uint256

DelBlackAccount Event

Parameters

operator	address
blackAccount	address

DelWhiteAccount Event

Parameters

operator	address
whiteAccount	address

OwnershipTransferred Event

Parameters

previousOwner	address
newOwner	address

Paused Event

Parameters

account

address

PauserAdded Event

Parameters

account

address

PauserRemoved Event

Parameters

account

address

Transfer Event

Parameters

from	address
to	address
value	uint256

TransferMuti Event

Parameters

len	uint256
amount	uint256

Unpaused Event

Parameters

account

address

Constants (2)

DECIMALS Constant

uint8

INITIAL_SUPPLY Constant

uint256

100000000 * UNKNOWN VALUE

State Variables (13)

blackAccountMap Variable

mapping(address => uint)

Internal Variable

blackAccounts Variable

address[]

Internal Variable

whiteAccountMap Variable

mapping(address => uint)

Internal Variable

whiteAccounts Variable

address[]

Internal Variable

_balances Variable

mapping(address => uint256)

Internal Variable

_allowances Variable

mapping(address => mapping(address => uint256))

Internal Variable

_totalSupply Variable

uint256

Internal Variable

_name Variable

string

Internal Variable

_symbol Variable

string

Internal Variable

_decimals Variable

uint8

Internal Variable

_paused Variable

bool

Internal Variable

_pausers Variable

Roles.Role

Internal Variable

_owner Variable

address

Internal Variable

Functions Expand All Collapse All

owner

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function owner() public view returns (address) {
  return _owner;
}

isOwner

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function isOwner() public view returns (bool) {
  return _msgSender() == _owner;
}

renounceOwnership

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

null

Source Code

function renounceOwnership() public onlyOwner {
  emit OwnershipTransferred(_owner, address(0));
  _owner = address(0);
}

transferOwnership

Parameters

Name	Type
newOwner	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

null

Requirements

newOwner must not be equal to UNKNOWN VALUE

Source Code

function transferOwnership(address newOwner) public onlyOwner {
  _transferOwnership(newOwner);
}

isPauser

Parameters

Name	Type
account	address

Properties

Visibility public

Mutability view

Source Code

function isPauser(address account) public view returns (bool) {
  return _pausers.has(account);
}

addPauser

Parameters

Name	Type
account	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyPauser checks for the following:

null

Source Code

function addPauser(address account) public onlyPauser {
  _addPauser(account);
}

renouncePauser

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Source Code

function renouncePauser() public {
  _removePauser(_msgSender());
}

paused

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function paused() public view returns (bool) {
  return _paused;
}

pause

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyPauser checks for the following:

null

whenNotPaused checks for the following:

_paused must not be true

Source Code

function pause() public onlyPauser whenNotPaused {
  _paused = true;
  emit Paused(_msgSender());
}

unpause

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyPauser checks for the following:

null

whenPaused checks for the following:

_paused must be true

Source Code

function unpause() public onlyPauser whenPaused {
  _paused = false;
  emit Unpaused(_msgSender());
}

name

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function name() public view returns (string memory) {
  return _name;
}

symbol

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function symbol() public view returns (string memory) {
  return _symbol;
}

decimals

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function decimals() public view returns (uint8) {
  return _decimals;
}

totalSupply

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function totalSupply() public view returns (uint256) {
  return _totalSupply;
}

balanceOf

Parameters

Name	Type
account	address

Properties

Visibility public

Mutability view

Source Code

function balanceOf(address account) public view returns (uint256) {
  return _balances[account];
}

transfer

Parameters

Name	Type
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

the result of calling _msgSender must not be equal to UNKNOWN VALUE

recipient must not be equal to UNKNOWN VALUE

Source Code

function transfer(address _to, uint256 _value) public returns (bool) {
  if (paused() == true) {
    // , only white list pass
    require(
      whiteAccountMap[msg.sender] != 0,
      "contract is in paused, only in white list can transfer"
    );
  } else {
    // check black list
    require(
      blackAccountMap[msg.sender] == 0,
      "address in black list, can't transfer"
    );
  }
  return super.transfer(_to, _value);
}

allowance

Parameters

Name	Type
owner	address
spender	address

Properties

Visibility public

Mutability view

Source Code

function allowance(address owner, address spender)
  public
  view
  returns (uint256)
{
  return _allowances[owner][spender];
}

approve

Parameters

Name	Type
spender	address
amount	uint256

Properties

Visibility public

Mutability transaction

Requirements

the result of calling _msgSender must not be equal to UNKNOWN VALUE

spender must not be equal to UNKNOWN VALUE

Source Code

function approve(address spender, uint256 amount) public returns (bool) {
  _approve(_msgSender(), spender, amount);
  return true;
}

transferFrom

Parameters

Name	Type
_from	address
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

the result of calling _msgSender must not be equal to UNKNOWN VALUE

recipient must not be equal to UNKNOWN VALUE

the result of calling _msgSender must not be equal to UNKNOWN VALUE

Source Code

function transferFrom(
  address _from,
  address _to,
  uint256 _value
) public returns (bool) {
  if (paused() == true) {
    // frozen contract , only white list pass
    require(
      whiteAccountMap[msg.sender] != 0,
      "contract is in  paused, can't transfer"
    );
    if (msg.sender != _from) {
      require(
        whiteAccountMap[_from] != 0,
        "contract is in  paused, can't transfer"
      );
    }
  } else {
    // check black list
    require(
      blackAccountMap[msg.sender] == 0,
      "address in black list, can't transfer"
    );
    if (msg.sender != _from) {
      require(
        blackAccountMap[_from] == 0,
        "address in black list, can't transfer"
      );
    }
  }

  return super.transferFrom(_from, _to, _value);
}

increaseAllowance

Parameters

Name	Type
spender	address
addedValue	uint256

Properties

Visibility public

Mutability transaction

Requirements

the result of calling _msgSender must not be equal to UNKNOWN VALUE

Source Code

function increaseAllowance(address spender, uint256 addedValue)
  public
  returns (bool)
{
  _approve(
    _msgSender(),
    spender,
    _allowances[_msgSender()][spender].add(addedValue)
  );
  return true;
}

decreaseAllowance

Parameters

Name	Type
spender	address
subtractedValue	uint256

Properties

Visibility public

Mutability transaction

Requirements

the result of calling _msgSender must not be equal to UNKNOWN VALUE

Source Code

function decreaseAllowance(address spender, uint256 subtractedValue)
  public
  returns (bool)
{
  _approve(
    _msgSender(),
    spender,
    _allowances[_msgSender()][spender].sub(
      subtractedValue,
      "ERC20: decreased allowance below zero"
    )
  );
  return true;
}

constructor

Parameters

This function has no parameters.

Properties

Visibility public

Mutability payable

Source Code

function() external payable {
  revert();
}

withdrawFromContract

Parameters

Name	Type
_to	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

null

validAddress checks for the following:

_to must not be equal to UNKNOWN VALUE

Requirements

contractBalance must be greater than 0

the result of calling _msgSender must not be equal to UNKNOWN VALUE

_to must not be equal to UNKNOWN VALUE

Source Code

function withdrawFromContract(address _to)
  public
  onlyOwner
  validAddress(_to)
  returns (bool)
{
  uint256 contractBalance = balanceOf(address(this));
  require(contractBalance > 0, "not enough balance");

  _transfer(address(this), _to, contractBalance);
  return true;
}

addWhiteAccount

Parameters

Name	Type
_whiteAccount	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

null

validAddress checks for the following:

_to must not be equal to UNKNOWN VALUE

Requirements

whiteAccountMap for _whiteAccount must be equal to 0

index must be less than 4294967296

Source Code

function addWhiteAccount(address _whiteAccount)
  public
  onlyOwner
  validAddress(_whiteAccount)
{
  require(whiteAccountMap[_whiteAccount] == 0, "has in white list");

  uint256 index = whiteAccounts.length;
  require(index < 4294967296, "white list is too long");

  whiteAccounts.length += 1;
  whiteAccounts[index] = _whiteAccount;

  whiteAccountMap[_whiteAccount] = index + 1;
  emit AddWhiteAccount(msg.sender, _whiteAccount);
}

delWhiteAccount

Parameters

Name	Type
_whiteAccount	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

null

validAddress checks for the following:

_to must not be equal to UNKNOWN VALUE

Requirements

whiteAccountMap for _whiteAccount must not be equal to 0

Source Code

function delWhiteAccount(address _whiteAccount)
  public
  onlyOwner
  validAddress(_whiteAccount)
{
  require(whiteAccountMap[_whiteAccount] != 0, "not in white list");

  uint256 index = whiteAccountMap[_whiteAccount];
  if (index == whiteAccounts.length) {
    whiteAccounts.length -= 1;
  } else {
    address lastaddress = whiteAccounts[whiteAccounts.length - 1];
    whiteAccounts[index - 1] = lastaddress;
    whiteAccounts.length -= 1;
    whiteAccountMap[lastaddress] = index;
  }
  delete whiteAccountMap[_whiteAccount];
  emit DelWhiteAccount(msg.sender, _whiteAccount);
}

addBlackAccount

Parameters

Name	Type
_blackAccount	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

null

validAddress checks for the following:

_to must not be equal to UNKNOWN VALUE

Requirements

blackAccountMap for _blackAccount must be equal to 0

index must be less than 4294967296

Source Code

function addBlackAccount(address _blackAccount)
  public
  onlyOwner
  validAddress(_blackAccount)
{
  require(blackAccountMap[_blackAccount] == 0, "has in black list");

  uint256 index = blackAccounts.length;
  require(index < 4294967296, "black list is too long");

  blackAccounts.length += 1;
  blackAccounts[index] = _blackAccount;
  blackAccountMap[_blackAccount] = index + 1;

  emit AddBlackAccount(msg.sender, _blackAccount);
}

delBlackAccount

Parameters

Name	Type
_blackAccount	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

null

validAddress checks for the following:

_to must not be equal to UNKNOWN VALUE

Requirements

blackAccountMap for _blackAccount must not be equal to 0

Source Code

function delBlackAccount(address _blackAccount)
  public
  onlyOwner
  validAddress(_blackAccount)
{
  require(blackAccountMap[_blackAccount] != 0, "not in black list");

  uint256 index = blackAccountMap[_blackAccount];
  if (index == blackAccounts.length) {
    blackAccounts.length -= 1;
  } else {
    address lastaddress = blackAccounts[blackAccounts.length - 1];
    blackAccounts[index - 1] = lastaddress;
    blackAccounts.length -= 1;
    blackAccountMap[lastaddress] = index;
  }

  delete blackAccountMap[_blackAccount];
  emit DelBlackAccount(msg.sender, _blackAccount);
}

Internal Functions Expand All Collapse All

Internal functions are parts of the contract that can't be used directly, but instead are used by the public functions listed above.

internal ERC20._transfer

Parameters

Name	Type
sender	address
recipient	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the result of calling _msgSender must not be equal to UNKNOWN VALUE

_to must not be equal to UNKNOWN VALUE

Source Code

function _transfer(
  address sender,
  address recipient,
  uint256 amount
) internal {
  require(sender != address(0), "ERC20: transfer from the zero address");
  require(recipient != address(0), "ERC20: transfer to the zero address");

  _balances[sender] = _balances[sender].sub(
    amount,
    "ERC20: transfer amount exceeds balance"
  );
  _balances[recipient] = _balances[recipient].add(amount);
  emit Transfer(sender, recipient, amount);
}

internal ERC20._mint

Parameters

Name	Type
account	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

account must not be equal to UNKNOWN VALUE

Source Code

function _mint(address account, uint256 amount) internal {
  require(account != address(0), "ERC20: mint to the zero address");

  _totalSupply = _totalSupply.add(amount);
  _balances[account] = _balances[account].add(amount);
  emit Transfer(address(0), account, amount);
}

internal ERC20._burn

Parameters

Name	Type
account	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

account must not be equal to UNKNOWN VALUE

Source Code

function _burn(address account, uint256 amount) internal {
  require(account != address(0), "ERC20: burn from the zero address");

  _balances[account] = _balances[account].sub(
    amount,
    "ERC20: burn amount exceeds balance"
  );
  _totalSupply = _totalSupply.sub(amount);
  emit Transfer(account, address(0), amount);
}

internal ERC20._approve

Parameters

Name	Type
owner	address
spender	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the result of calling _msgSender must not be equal to UNKNOWN VALUE

Source Code

function _approve(
  address owner,
  address spender,
  uint256 amount
) internal {
  require(owner != address(0), "ERC20: approve from the zero address");
  require(spender != address(0), "ERC20: approve to the zero address");

  _allowances[owner][spender] = amount;
  emit Approval(owner, spender, amount);
}

internal ERC20._burnFrom

Parameters

Name	Type
account	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

account must not be equal to UNKNOWN VALUE

the result of calling _msgSender must not be equal to UNKNOWN VALUE

Source Code

function _burnFrom(address account, uint256 amount) internal {
  _burn(account, amount);
  _approve(
    account,
    _msgSender(),
    _allowances[account][_msgSender()].sub(
      amount,
      "ERC20: burn amount exceeds allowance"
    )
  );
}

internal Context.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {}

internal Context._msgSender

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgSender() internal view returns (address payable) {
  return msg.sender;
}

internal Context._msgData

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgData() internal view returns (bytes memory) {
  this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
  return msg.data;
}

internal Pausable.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {
  _paused = false;
}

internal Context.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {}

internal Context._msgSender

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgSender() internal view returns (address payable) {
  return msg.sender;
}

internal Context._msgData

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgData() internal view returns (bytes memory) {
  this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
  return msg.data;
}

internal PauserRole.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {
  _addPauser(_msgSender());
}

internal PauserRole._addPauser

Parameters

Name	Type
account	address

Properties

Visibility internal

Mutability transaction

Source Code

function _addPauser(address account) internal {
  _pausers.add(account);
  emit PauserAdded(account);
}

internal PauserRole._removePauser

Parameters

Name	Type
account	address

Properties

Visibility internal

Mutability transaction

Source Code

function _removePauser(address account) internal {
  _pausers.remove(account);
  emit PauserRemoved(account);
}

internal Context.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {}

internal Context._msgSender

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgSender() internal view returns (address payable) {
  return msg.sender;
}

internal Context._msgData

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgData() internal view returns (bytes memory) {
  this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
  return msg.data;
}

internal Ownable.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {
  address msgSender = _msgSender();
  _owner = msgSender;
  emit OwnershipTransferred(address(0), msgSender);
}

internal Ownable._transferOwnership

Parameters

Name	Type
newOwner	address

Properties

Visibility internal

Mutability transaction

Requirements

newOwner must not be equal to UNKNOWN VALUE

Source Code

function _transferOwnership(address newOwner) internal {
  require(newOwner != address(0), "Ownable: new owner is the zero address");
  emit OwnershipTransferred(_owner, newOwner);
  _owner = newOwner;
}

internal Context.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {}

internal Context._msgSender

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgSender() internal view returns (address payable) {
  return msg.sender;
}

internal Context._msgData

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgData() internal view returns (bytes memory) {
  this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
  return msg.data;
}

CocosTokenV2

ERC20

About link description

Stats

Library Use

Events (12) keyboard_arrow_up

AddBlackAccount Event

Parameters help Event parameters list the data that an event contains.

AddWhiteAccount Event

Parameters help Event parameters list the data that an event contains.

Approval Event

Parameters help Event parameters list the data that an event contains.

DelBlackAccount Event

Parameters help Event parameters list the data that an event contains.

DelWhiteAccount Event

Parameters help Event parameters list the data that an event contains.

OwnershipTransferred Event

Parameters help Event parameters list the data that an event contains.

Paused Event

Parameters help Event parameters list the data that an event contains.

PauserAdded Event

Parameters help Event parameters list the data that an event contains.

PauserRemoved Event

Parameters help Event parameters list the data that an event contains.

Transfer Event

Parameters help Event parameters list the data that an event contains.

TransferMuti Event

Parameters help Event parameters list the data that an event contains.

Unpaused Event

Parameters help Event parameters list the data that an event contains.

Constants (2) keyboard_arrow_up

DECIMALS Constant

INITIAL_SUPPLY Constant

State Variables (13) keyboard_arrow_up

blackAccountMap Variable

blackAccounts Variable

whiteAccountMap Variable

whiteAccounts Variable

_balances Variable

_allowances Variable

_totalSupply Variable

_name Variable

_symbol Variable

_decimals Variable

_paused Variable

_pausers Variable

_owner Variable

Functions Expand All Collapse All

owner keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Source Code

isOwner keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Source Code

renounceOwnership keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onlyOwner checks for the following:

Source Code

transferOwnership keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onlyOwner checks for the following:

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

isPauser keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Source Code

addPauser keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onlyPauser checks for the following:

Source Code

renouncePauser keyboard_arrow_up

About

Events (12)

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Constants (2)

State Variables (13)

owner

Parameters

isOwner

Parameters

renounceOwnership

Parameters

Modifiers

transferOwnership

Parameters

Modifiers

Requirements

isPauser

Parameters

addPauser

Parameters

Modifiers

renouncePauser

Parameters

paused

Parameters

pause

Parameters

Modifiers

unpause

Parameters

Modifiers

name

Parameters

symbol

Parameters

decimals

Parameters

totalSupply

Parameters

balanceOf

Parameters

transfer

Parameters

Requirements

allowance

Parameters

approve

Parameters

Requirements

transferFrom

Parameters

Requirements

increaseAllowance

Parameters

Requirements

decreaseAllowance

Parameters

Requirements